fix doc

doc.go

@@ -27,8 +27,8 @@ Install:
 
 1. Type in your shell:
 
-	go get -u github.com/posener/complete/gocomplete
-	COMP_INSTALL=1 gocomplete
+ go get -u github.com/posener/complete/gocomplete
+ COMP_INSTALL=1 gocomplete
 
 2. Restart your shell
 
@@ -52,75 +52,71 @@ Usage
 
 Add bash completion capabilities to any Go program. See ./example/command.
 
-	import (
-		"flag"
-		"github.com/posener/complete/v2"
-		"github.com/posener/complete/v2/predict"
-	)
-
-	var (
-		// Add variables to the program.
-		name      = flag.String("name", "", "")
-		something = flag.String("something", "", "")
-		nothing   = flag.String("nothing", "", "")
-	)
-
-	func main() {
-		// Create the complete command.
-		// Here we define completion values for each flag.
-		cmd := &complete.Command{
-			Flags: map[string]complete.Predictor{
-				"name":      predict.Set{"foo", "bar", "foo bar"},
-				"something": predict.Something,
-				"nothing":   predict.Nothing,
-			},
-		}
-		// Run the completion - provide it with the binary name.
-		cmd.Complete("my-program")
-		// Parse the flags.
-		flag.Parse()
-		// Program logic...
-	}
+ import (
+ 	"flag"
+ 	"github.com/posener/complete/v2"
+ 	"github.com/posener/complete/v2/predict"
+ )
+ var (
+ 	// Add variables to the program.
+ 	name      = flag.String("name", "", "")
+ 	something = flag.String("something", "", "")
+ 	nothing   = flag.String("nothing", "", "")
+ )
+ func main() {
+ 	// Create the complete command.
+ 	// Here we define completion values for each flag.
+ 	cmd := &complete.Command{
+	 	Flags: map[string]complete.Predictor{
+ 			"name":      predict.Set{"foo", "bar", "foo bar"},
+ 			"something": predict.Something,
+ 			"nothing":   predict.Nothing,
+ 		},
+ 	}
+ 	// Run the completion - provide it with the binary name.
+ 	cmd.Complete("my-program")
+ 	// Parse the flags.
+ 	flag.Parse()
+ 	// Program logic...
+ }
 
 This package also enables to complete flags defined by the standard library `flag` package.
 To use this feature, simply call `complete.CommandLine` before `flag.Parse`. (See ./example/stdlib).
 
-  	import (
-		"flag"
- +		"github.com/posener/complete/v2"
-	)
-	var (
-		// Define flags here...
-		foo = flag.Bool("foo", false, "")
-	)
-
-	func main() {
-		// Call command line completion before parsing the flags - provide it with the binary name.
- +		complete.CommandLine("my-program")
-		flag.Parse()
-	}
+  import (
+  	"flag"
+ +	"github.com/posener/complete/v2"
+  )
+  var (
+  	// Define flags here...
+  	foo = flag.Bool("foo", false, "")
+  )
+  func main() {
+  	// Call command line completion before parsing the flags - provide it with the binary name.
+ +	complete.CommandLine("my-program")
+  	flag.Parse()
+  }
 
 If flag value completion is desired, it can be done by providing the standard library `flag.Var`
 function a `flag.Value` that also implements the `complete.Predictor` interface. For standard
 flag with values, it is possible to use the `github.com/posener/complete/compflag` package.
 (See ./example/compflag).
 
-  	import (
-		"flag"
- +		"github.com/posener/complete/v2"
- +		"github.com/posener/complete/v2/compflag"
-	)
-	var (
-		// Define flags here...
- -		foo = flag.Bool("foo", false, "")
- +		foo = compflag.Bool("foo", false, "")
-	)
-
-	func main() {
-		// Call command line completion before parsing the flags.
- +		complete.CommandLine("my-program")
-		flag.Parse()
-	}
+  import (
+  	"flag"
+ +	"github.com/posener/complete/v2"
+ +	"github.com/posener/complete/v2/compflag"
+  )
+  var (
+  	// Define flags here...
+ -	foo = flag.Bool("foo", false, "")
+ +	foo = compflag.Bool("foo", false, "")
+  )
+  func main() {
+  	// Call command line completion before parsing the flags.
+ +	complete.CommandLine("my-program")
+  	flag.Parse()
+  }
 
 Instead of calling both `complete.CommandLine` and `flag.Parse`, one can call just `compflag.Parse`
 which does them both.